File: arc_vmm_swap_scheduler_unittest.cc

package info (click to toggle)
chromium 138.0.7204.183-1~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 6,080,960 kB
  • sloc: cpp: 34,937,079; ansic: 7,176,967; javascript: 4,110,704; python: 1,419,954; asm: 946,768; xml: 739,971; pascal: 187,324; sh: 89,623; perl: 88,663; objc: 79,944; sql: 50,304; cs: 41,786; fortran: 24,137; makefile: 21,811; php: 13,980; tcl: 13,166; yacc: 8,925; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (260 lines) | stat: -rw-r--r-- 8,071 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ash/arc/vmm/arc_vmm_swap_scheduler.h"

#include <optional>

#include "base/functional/callback_forward.h"
#include "base/functional/callback_helpers.h"
#include "base/test/bind.h"
#include "base/time/time.h"
#include "chrome/browser/ash/arc/vmm/arc_system_state_observation.h"
#include "chrome/browser/ash/arc/vmm/arc_vmm_manager.h"
#include "chrome/test/base/scoped_testing_local_state.h"
#include "chrome/test/base/testing_browser_process.h"
#include "chrome/test/base/testing_profile.h"
#include "chromeos/ash/components/dbus/concierge/fake_concierge_client.h"
#include "chromeos/ash/experiences/arc/arc_prefs.h"
#include "chromeos/ash/experiences/arc/session/arc_service_manager.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace arc {

namespace {
constexpr auto kCheckingPreiod = base::Minutes(5);

class TestPeaceDurationProvider : public PeaceDurationProvider {
 public:
  std::optional<base::TimeDelta> GetPeaceDuration() override {
    count_++;
    return duration_;
  }

  void SetDurationResetCallback(base::RepeatingClosure cb) override {
    reset_cb_ = std::move(cb);
  }

  void SetDuration(std::optional<base::TimeDelta> d) {
    duration_ = d;
    if (d == std::nullopt && !reset_cb_.is_null()) {
      reset_cb_.Run();
    }
  }
  int count() { return count_; }

 private:
  int count_ = 0;
  base::RepeatingClosure reset_cb_;
  std::optional<base::TimeDelta> duration_;
};

}  // namespace

class ArcVmmSwapSchedulerTest : public testing::Test {
 public:
  ArcVmmSwapSchedulerTest() : local_state_(TestingBrowserProcess::GetGlobal()) {
    ash::ConciergeClient::InitializeFake();
  }

  ArcVmmSwapSchedulerTest(const ArcVmmSwapSchedulerTest&) = delete;
  ArcVmmSwapSchedulerTest& operator=(const ArcVmmSwapSchedulerTest&) = delete;

  ~ArcVmmSwapSchedulerTest() override { ash::ConciergeClient::Shutdown(); }

  void SetSwapOutTime(base::Time time) {
    local_state_.Get()->SetTime(prefs::kArcVmmSwapOutTime, base::Time());
  }

  base::Time GetSwapOutTime() {
    return local_state_.Get()->GetTime(prefs::kArcVmmSwapOutTime);
  }

  base::test::TaskEnvironment* task_environment() { return &task_environment_; }

 protected:
  content::BrowserTaskEnvironment task_environment_{
      base::test::TaskEnvironment::TimeSource::MOCK_TIME};

 private:
  ScopedTestingLocalState local_state_;
};

TEST_F(ArcVmmSwapSchedulerTest, SetSwapEnableDisable) {
  int enable_count = 0, disable_count = 0;

  auto scheduler = std::make_unique<ArcVmmSwapScheduler>(
      base::BindLambdaForTesting([&](bool enabled) {
        if (enabled) {
          enable_count++;
        } else {
          disable_count++;
        }
      }),
      /* minimum_swapout_interval= */ std::nullopt,
      /* swappable_checking_period= */ std::nullopt, nullptr);

  base::RunLoop().RunUntilIdle();

  EXPECT_EQ(enable_count, 0);
  EXPECT_EQ(disable_count, 0);

  // Enable vmm swap.
  scheduler->SetSwappable(true);
  EXPECT_EQ(enable_count, 1);
  EXPECT_EQ(disable_count, 0);

  // Disable vmm swap.
  scheduler->SetSwappable(false);
  EXPECT_EQ(enable_count, 1);
  EXPECT_EQ(disable_count, 1);
}

TEST_F(ArcVmmSwapSchedulerTest, EnableSwap) {
  // Pref value will be the base::Time() if it's empty.
  SetSwapOutTime(base::Time());

  auto provider = std::make_unique<TestPeaceDurationProvider>();
  provider->SetDuration(kCheckingPreiod * 2);
  auto* provider_raw = provider.get();
  int swap_count = 0;

  auto scheduler = std::make_unique<ArcVmmSwapScheduler>(
      base::BindLambdaForTesting([&](bool enabled) {
        if (enabled) {
          swap_count++;
        }
      }),
      /* minimum_swapout_interval= */ std::nullopt,
      /* swappable_checking_period= */ kCheckingPreiod, std::move(provider));

  base::RunLoop().RunUntilIdle();

  // Checking should wait for the first period.
  EXPECT_EQ(provider_raw->count(), 0);

  // Check and swapped.
  task_environment_.FastForwardBy(base::Minutes(20));
  base::RunLoop().RunUntilIdle();
  EXPECT_GT(provider_raw->count(), 0);
  EXPECT_GT(swap_count, 0);
}

TEST_F(ArcVmmSwapSchedulerTest, NeverEnableSwap) {
  // Pref value will be the base::Time() if it's empty.
  SetSwapOutTime(base::Time());

  auto provider = std::make_unique<TestPeaceDurationProvider>();
  provider->SetDuration(std::nullopt);
  auto* provider_raw = provider.get();
  int swap_count = 0;

  auto scheduler = std::make_unique<ArcVmmSwapScheduler>(
      base::BindLambdaForTesting([&](bool enabled) {
        if (enabled) {
          swap_count++;
        }
      }),
      /* minimum_swapout_interval= */ std::nullopt,
      /* swappable_checking_period= */ kCheckingPreiod, std::move(provider));

  base::RunLoop().RunUntilIdle();

  // Checking should wait for the first period.
  EXPECT_EQ(provider_raw->count(), 0);

  // Check and never swapped.
  task_environment_.FastForwardBy(base::Minutes(20));
  base::RunLoop().RunUntilIdle();
  EXPECT_GT(provider_raw->count(), 0);
  EXPECT_EQ(swap_count, 0);
}

TEST_F(ArcVmmSwapSchedulerTest, EnableSwapAndDisableSwap) {
  // Pref value will be the base::Time() if it's empty.
  SetSwapOutTime(base::Time());

  auto provider = std::make_unique<TestPeaceDurationProvider>();
  provider->SetDuration(kCheckingPreiod * 2);
  auto* provider_raw = provider.get();
  int swap_count = 0;

  auto scheduler = std::make_unique<ArcVmmSwapScheduler>(
      base::BindLambdaForTesting([&](bool enabled) {
        if (enabled) {
          swap_count++;
        }
      }),
      /* minimum_swapout_interval= */ std::nullopt,
      /* swappable_checking_period= */ kCheckingPreiod, std::move(provider));

  base::RunLoop().RunUntilIdle();

  // Checking should wait for the first period.
  EXPECT_EQ(provider_raw->count(), 0);

  // Check and never swapped.
  task_environment_.FastForwardBy(base::Minutes(20));
  base::RunLoop().RunUntilIdle();
  EXPECT_GT(provider_raw->count(), 0);
  EXPECT_GT(swap_count, 0);

  // Set system "busy" i.e. "not swappable".
  auto checking_count_before_busy = provider_raw->count();
  auto swap_count_before_busy = swap_count;
  provider_raw->SetDuration(std::nullopt);
  task_environment_.FastForwardBy(base::Minutes(20));
  base::RunLoop().RunUntilIdle();
  EXPECT_GT(provider_raw->count(), checking_count_before_busy);
  EXPECT_EQ(swap_count, swap_count_before_busy);
}

TEST_F(ArcVmmSwapSchedulerTest, ReceiveSignalAndSave) {
  auto scheduler = std::make_unique<ArcVmmSwapScheduler>(
      base::NullCallback(),
      /* minimum_swapout_interval= */ std::nullopt,
      /* swappable_checking_period= */ std::nullopt, nullptr);

  SetSwapOutTime(base::Time());
  EXPECT_EQ(GetSwapOutTime(), base::Time());
  vm_tools::concierge::VmSwappingSignal signal;
  signal.set_name("arcvm");
  signal.set_state(vm_tools::concierge::SWAPPING_OUT);
  scheduler->OnVmSwapping(signal);

  EXPECT_NE(GetSwapOutTime(), base::Time());
}

TEST_F(ArcVmmSwapSchedulerTest, SetDisableVmStateWhenDurationReset) {
  // Pref value will be the base::Time() if it's empty.
  SetSwapOutTime(base::Time());

  auto provider = std::make_unique<TestPeaceDurationProvider>();
  provider->SetDuration(kCheckingPreiod * 2);

  int swap_count = 0;
  auto* provider_raw = provider.get();
  auto scheduler = std::make_unique<ArcVmmSwapScheduler>(
      base::BindLambdaForTesting([&](bool enabled) {
        if (enabled) {
          swap_count++;
        }
      }),
      /* minimum_swapout_interval= */ std::nullopt,
      /* swappable_checking_period= */ kCheckingPreiod, std::move(provider));

  provider_raw->SetDuration(base::Minutes(20));
  task_environment_.FastForwardBy(base::Minutes(20));
  base::RunLoop().RunUntilIdle();
  // Expect swap enabled.
  EXPECT_GT(swap_count, 0);

  task_environment_.FastForwardBy(base::Minutes(10));
  // Set ARC activated.
  provider_raw->SetDuration(std::nullopt);
  base::RunLoop().RunUntilIdle();
}

}  // namespace arc